In this June, Dr. Jin Gyu Lee, visited CDSL and held a seminar on “Rapid convergence property of robust central patterns generated by heterogeneous neuronal circuits”. Dr. Lee graduated from CDSL last year and is currently under postdoctoral course in University of Cambridge.
Dr. Lee is recently interested in combining neuroscience and control theory, especially in interpreting neural network behavior with multi-agent system theories. In this seminar, he introduced the concept of excitability, a system property to exhibit an all-or-none response to pulse inputs, like when neurons generate spikes as the image below. Then, he showed some mathematical models with this property such as the conductance-based model.
Since Dr. Lee has researched mainly on synchronization of multi-agent systems in CDSL, he is making use of his expertise into study on rapid synchronization in the network of heterogeneous excitable systems, which can be observed in neural networks such as in brain states. He explained this rapid synchronization when such network of systems is under weak synaptic coupling, using output feedback contractive property in the linearization.
After the seminar, CDSL students and professor Shim gathered to share their news and ongoing research. Hopefully, Dr. Lee will thrive and produce great results in his research. More information on Dr. Jin Gyu Lee can be found in his hompage.
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